OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a4a716-0): addr:be:22:16:c6:1c:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fe677f-0): addr:ae:3c:84:c6:a4:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:da:a2:3e:66:c9:e6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
